Encode text strings and binary files (images, audio, documents) into Base64 and Data URLs directly in your browser.
Select "Text" to encode a string or "File" to encode an image/binary document.
Watch the Base64 representation generate automatically.
Click "Copy Base64" or copy as complete data URL.
Handles foreign characters, emojis, and symbols without character corruption.
Encode PNG, JPG, or SVG images directly into data:image/... strings for inline CSS/HTML.
Quickly copy output with toast notification.
Base64 encoding is widely used to embed images directly into HTML/CSS, transmit binary attachments in JSON payloads, and format HTTP basic auth headers. Our Base64 Encoder supports full UTF-8 Unicode characters as well as direct file-to-Base64 Data URL conversions with zero server uploads.
Standard JavaScript btoa() only supports Latin1 characters. Our encoder implements a full UTF-8 byte encoder, allowing flawless Base64 conversion of any language or emoji.
You might also find these complementary free tools useful:
Decode Base64 strings back to readable UTF-8 text, preview decoded images, or download binary files directly in your browser.
Encode and decode URLs, query strings, and parameters with percent-encoding and component parsing directly in your browser.
Beautify, pretty-print, and minify JSON payloads directly in your browser with zero risk of exposing confidential API data or tokens.